"Late Prehistoric China". www.nga.gov. Archived from the original on 2008-02-02. Retrieved 2007-12-14. Exhibition Brochure, National Gallery of Art, Washington, DC.
[1] University of Pittsburgh, Pennsylvania: Regional Lifeways and Cultural Remains in the Northern Corridor: Chifeng International Collaborative Archaeological Research Project. Cited references: Drennan 1995; and Earle 1987, 1997.
[3]Archived 2013-09-21 at the Wayback Machine Roger Blench(2004), Stratification in the peopling of China: how far does the linguistic evidence match genetics and archaeology? p.9
"Late Prehistoric China". www.nga.gov. Archived from the original on 2008-02-02. Retrieved 2007-12-14. Exhibition Brochure, National Gallery of Art, Washington, DC.
[2] Sarah M. Nelson, Rachel A. Matson, Rachel M. Roberts, Chris Rock and Robert E. Stencel: Archaeoastronomical Evidence for Wuism at the Hongshan Site of Niuheliang, 2006.
[3]Archived 2013-09-21 at the Wayback Machine Roger Blench(2004), Stratification in the peopling of China: how far does the linguistic evidence match genetics and archaeology? p.9